| Year | Operation Name | Number | Type | Opening | District | City | County | Company Name | Railroad Shipments (tons) | Railroad to Mine | Truck Shipments (tons) | Total Production (tons) | Days Worked | Employees | Notes |
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| 1939 | Gunton | | Colliery | | 10 | | Sullivan | Bernice Basin Coal Co. | 630 | | 2,800 | 3,782 | 120 | 14 | | | 1939 | Sullivan | | Colliery | | 10 | | Sullivan | Bernice Basin Coal Co. | 0 | | 0 | 3,397 | 120 | 55 | | | 1940 | Gunton | | Colliery | | 10 | | Sullivan | Bernice Basin Coal Co. | 840 | | 2,649 | 3,749 | 30 | 69 | Discontinued operation on February 15, 1940. |
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